Definition of Neptunian

Definition of Neptunian

2. Adjective. (astronomy) Of or pertaining to Neptune, the eighth planet of the Solar System ¹

3. Adjective. (geology) Formed by the action of water ¹

4. Adjective. (physics) Pertaining to the element neptunium ¹

5. Noun. (science fiction) An inhabitant of the planet Neptune. ¹

¹ Source: wiktionary.com

Medical Definition of Neptunian

1.
1. Of or pertaining to the ocean or sea.
2. Formed by water or aqueous solution; as, Neptunian rocks.
Neptunian races, the Malay and Polynesian races.
Neptunian theory, the theory of Werner, which referred the formation of all rocks and strata to the agency of water; opposed to the Plutonic theory.
Origin: L. Neptunius belonging to Neptune: cf. F. Neptunien.
Source: Websters Dictionary
(01 Mar 1998)

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